Dr J. B. Bellamy (F) (Marlow & Co. Ltd)
The authors are ta be congratulated on a most interesting paper which shows that today,
despite advances in technology, we are less willing to build large roofs in timber than our predecessors. Large numbers of Belfast truss roofs were built and appear to have given satisfactory service for many years; surely this provides us with a database of experience that could be used to assess the stress levels permitted in current Codes and the limit state factors proposed in EC5?